77305609004 has 24 divisors (see below), whose sum is σ = 145715405808. Its totient is φ = 35673618240.

The previous prime is 77305608983. The next prime is 77305609127. The reversal of 77305609004 is 40090650377.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203294 + ... + 442650.

It is an arithmetic number, because the mean of its divisors is an integer number (6071475242).

Almost surely, 2^77305609004 is an apocalyptic number.

It is an amenable number.

77305609004 is a deficient number, since it is larger than the sum of its proper divisors (68409796804).

77305609004 is a wasteful number, since it uses less digits than its factorization.

77305609004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245585 (or 245583 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 41.

The spelling of 77305609004 in words is "seventy-seven billion, three hundred five million, six hundred nine thousand, four".